ASTM D – Designation: D – 10 Standard Test Method for Viscosity by Ford Viscosity. ASTM D Standard Test Method for Viscosity by Ford Viscosity Cup. mm (˝) Orifice diameter; 25 – cSt Viscosity range; 40 – sec. Flow times. Viscometer Flow Cup, ASTM D, Ford No 3 · Viscometer Flow Cup.
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If the material is non-Newtonian, that is, shear-thinning or thixotropic, Test Method D should be used. Allow to stand undisturbed for 10 min while adjusting further to the desired temperature.
Keep the temperature drift to within It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory aatm prior to use.
Determinations should be made at a temperature above the dew point of the atmosphere surrounding the apparatus. Precision and Bias Aastm small change in diameter of the ori?
Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. A number in parentheses indicates the year 1d200 last reapproval.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. In addition, temperature measuring devices such as non-mercury liquid-in-glass thermometers, thermocouples, or platinum resistance thermometers that provide equivalent or better accuracy and precision, that cover the temperature range for thermometer 17C and 17F, may be used.
NOTE 2— It is impossible to predict the effect of temperature change on each material with which the apparatus may be used.
Measure the time until the? This standard has been approved for use by agencies of the Department of Defense. Originally approved in This standard v1200 subject to revision at any time by the responsible technical committee and must be reviewed every?
Temperature of Testing 8. ASTM D 2. Particular care must be exercised in cleaning the ori?
The frequency of this calibration check depends upon c1200 amount of use and the care that the individual cup receives. Your asgm are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. A percent correction can be applied to the seconds? The values given in parentheses are for information only.
Current edition approved July 1, Care of Cup The preferred method is to over? NOTE 1—If the ori? Determine the time of efflux to the nearest 0. Bring this cup and the liquid viscosity standard to a constant temperature as close as possible to For particular oils applicable for use with the Ford Cups refer to Table X1.
ASTM D | Hanatek Instruments
Make the viscosity determination at the end of the min period. Temperature drift during the test should be kept to a minimum and should not exceed Under no conditions should metal cleaning tools be brought into contact with the instrument. Fill the cup with the prepared specimen.
Oils available from other sources, having known kinematic viscosities, may also be used. Pull the stopper away and simultaneously start the timing device. If the ratio of shear stress to shear rate is not constant, the liquid is nonNewtonian. Last previous edition approved in as D — 94 Summary of Test Method 4.